As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EGT (ENGINE) FLUCTUATES. LEFT ENG EGT INTERMITTENTLY VARIES FROM 426 TO 230 REF FIM 77-21 TASK 804. CLEANED AND SECURED ALL CONNECTORS IN EGT SYS REF FIM 77-21. ACCOMPLISHED A 5 MINUTE IDLE RUN AND THE EGT INDICATION WAS SOLID. MAINTENANCE TASK AS PER FIM 77-21 TASK 803-804 CARRIED OUT. GROUND RUN IDLE CARRIED OUT BY FLIGHT CREW EGT INDICATION WAS SOLID.